Shuttle check for looms



Get. 8, 1935.

B. HUGGINS SHUTTLE CHECK FOR LOOMS Filed Aug. 51, 1934 V V :Eagy-v Patented Oct. 8, 1935 UNITED STATES PATENT OFFICE 3 Claims.

My invention relates to improvements in shuttle checks for looms.

An important object of my invention is to. provide a device of the above mentioned character 5 which will properly check the movement of the shuttle before and after it has made its full movement.

A further object of the invention is to provide a device of the above mentioned character which 10 will release the shuttle to permit of the free throw of the same when struck by the picker stick.

A further object of the invention is to pro-- vide means to regulate the action of the binder upon the shuttle in checking the same, and to 15 prevent rebounding of the shuttle.

A further object of the invention is to provide means to limit the downward movement of the operating lever to prevent the weight of the operating lever falling upon the picker stick and to 20 prevent such lever following the picker stick during its striking movement and only allowing contact with the springy drum.

Other objects and advantages of the invention will be apparent during the course of the 25 following description.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

30 Figure 1 is a perspective view of a device embodying my invention, showing the same in use,

Figure 2 is a plan view of the same,

Figure 3 is a side elevation of the operating lever, parts broken away, showing the relative 35 position of the shoe at the instant of contact with the picker stick,

Figure 4 is a similar view from the opposite side of the lever.

Figure 5 is a transverse section taken on line 40 55 of Figure 2, parts in elevation, and,

Figure 6 is a horizontal section through the contacting faces.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of 45 my invention, the numeral i designates the lay of the loom having the usual raceway for the shuttle H, and the usual shuttle box including the side or flange i2, and a binder l3, pivoted to the lay l0, as shown at I4. The numeral designates a picker stick which is operated in the usual manner.

The operating means to swing the binder l3 inwardly into engagement with the shuttle ll, comprises a bracket l6, which is vertically ar- 55 ranged, and is clamped to a bracket IT, by a bolt E8. The bracket I1 is rigidly attached to the lay I0 by any suitable means. The bracket I 6 is disposed upon the side of the lay l0, and projects above the same, and carries a horizontally arranged shaft or pivot element [9, preferably 5 rigidly secured thereto. Pivotally mounted upon the shaft I9 is a sleeve 20, carrying an operating lever 2i. This operating lever includes an outer arm 22, preferably formed in two sections, for the purpose of adjustment. The outer arm 22 com- 10 prises an inner arm section 23, preferably formed integral with the sleeve 20 and extending downwardly therefrom at an inclination. The inner arm section carries bolts 24, which extend through an elongated slot 25 formed in the outer arm section 26, and these bolts carry clamping nuts 21. The outer arm section may, therefore, be longitudinally adjusted with respect to the inner arm section and clamped thereto in the selected adjusted position. If desired, the outer arm may be formed in one piece. The outer arm section 26 has a lateral offset end portion 28, carrying a head 29, disposed in a plane parallel with the plane of movement of the picker stick. This head is provided with radial stops 30, 3! and 32, preferably formed integral therewith. The operating lever further comprises an inner arm 33, preferably integral with the sleeve 23 and this arm 33 has an upstanding head 34, provided with a cam face 35 which is vertically and horizontally inclined. 30 The head, 29 has a pivotelement or bolt 33 rigidly attached thereto and this bolt pivotally receives a hub 31 of a hollow shoe 38. The hub is arranged near the upper end of the shoe. The shoe is covered by a wear surface 39, such as 35 leather. Surrounding the hub 31 is a torsional coil spring 40, one end of which is attached to the shoe 38, at 4!, while its opposite end is attached to the bolt 35 by passing the same through a transverse opening 42 formed in the outer end of the bolt. This spring is tensioned to oppose the outwardly swinging movement of the lower end of the shoe. The shoe is arranged outwardly of and in the path of travel of the picker stick it. The shoe is provided at its closed end 43 45 with a lug 44, integral therewith, arranged between the stop lugs 30 and 3! The bracket I6 is provided with a horizontal flange 45 carrying a vertical bolt or pivot 46 rigidly attached thereto. This bolt or pivot has a binder operating lever 4! pivoted thereon to swing horizontally. This binder operating lever includes an outer arm 48 having an inner face 49 which tapers longitudinally outwardly and the face is arranged to engage with the face 35. The

binder operating lever includes an inner arm 50,

having a suitably stiff spring 5|,rigid1y attached thereto and projecting inwardly beyond the same. The inner arm 50 is provided at its free end with an enlarged head, covered with leather 50 or the like, and this head may supplement the pressure 7 applying action of the spring 5|, when necessary. This spring is bent laterally to project beyond the arm 50 and is disposed to engage with the end portion of the pivoted binder I3. The pivoted binder l3 may be omitted and the binder lever arranged to directly engage with the shuttle, as is well known in the art. The bracket [6 is provided near its outer edge with a lower stop lug or ear 52, preferably formed integral therer with and disposed in the path of travel of the outer arm 22 of the operating lever. When the operating lever swingsinwardly and downwardly}: upon the inward movement of the picker stick, 7

the lug or ear 52 limits the inward and downward movement of the outer arm.22, thus taking the weight of the arm off ofrthe' picker stick. Arranged above the operating armis an ear or lug 53 carrying'an adjustable stop bolt 54, ar, ranged in the path of travel of the operating arm and serving to regulate its; extent of upward;

movement, which in turnregulates the amount of pressure to be applied upon the pivoted binder l3.

The operation of the device'is as'follows: With the operating arm 22 resting upon the stop lug 52, the shuttle is thrown toward the cor-- responding shuttle box, and after ithas completed its travel or the lay, it strikes the picker stick l5, swinging the same outwardly. The picker.

stick engages the shoe 38 and swings the lower end of the same outwardly in opposition to the spring 40, until the lug 44 engages the stop lug 3|. The outer arm 22 of the operating lever is thereby swung upwardly and outwardly and its extent of movement is regulated by the adjustable stop bolt 54. The inner arm ofthe operating ,lever is swung downwardly, and the cam face 35moving downwardly in' engagement with the face 49 of the arm 48 produces a'downward wedging action with this face, swinging the arm 48 outw-ardly and the armfill inwardly thereby bringing the spring 5| into pressing engagement with the inner end of the binder 30. The binder is'therefore swung inwardly to engage with the shuttle l l and properly check its movement. When the picker stick starts upon its inward movement to strike the shuttle, it instantly releases the outer arm 22 of the operating lever, which swings downwardly, releasing the binder operating lever 41, 'which in turn releases the pressure from the 5 pivoted binder l 3, whereby the shuttle is released to be properly thrown by the picker stick.

' It is to be understood that the form of my invention herewith shown and described, is to be taken asa preferred example of the same and 10 that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of my invention or the "scope of the subjoined claims.

Having thus described my invention, what I 15 claim is: 1. In a loom, the combination with a lay having a shuttle box, a movable shuttle binder, and

a picker stick, of a binder operating lever pivotpicker stick. i .11

2. In a loom, means for operating the movable shuttle binder, comprising a movable binder operating device, a pivoted operating lever, said lever and device having cam action engaging parts, a shoe pivotally mounted upon the lever, a spring to oppose the movement of the shoe in one direction, and stops to limit the movement of the shoe in opposite directions;

3. In a loom, shuttle binding mechanism comprising a. binder lever pivoted between its ends 40 upon a substantially vertical axis, an operating lever pivoted between its ends upon a substantially horizontal axis and provided near one end with a face adapted for wedging action with the adjacent end portion of the binder lever, and an 459?: element carried by the opposite end portion of the operating lever and arranged in the path of travel of the picker stickto be moved thereby.

BON HUGGINS. 50 

